error msg polish

[shunjizhan]

when there is no explicit revert msg

current

    error: {
      "code": -32603,
      "data": "0x",
      "message": "execution reverted: "
    }

expected

    error: {
      "code": -32603,
      "data": "0x",
      "message": "execution reverted: 0x"
    }